公开(公告)号：US5747171A

公开(公告)日：1998-05-05

申请号：US635207

申请日：1996-04-17

Applicant: Marek Tokarz ,  Michael Persson ,  Roman Kozlowski

Inventor： Marek Tokarz ,  Michael Persson ,  Roman Kozlowski

IPC: C01B33/149 ,  C04B41/50 ,  C04B41/52 ,  C04B41/68 ,  C04B41/70 ,  B32B9/04

CPC classification number: C04B41/009 ,  C01B33/149 ,  C04B41/5089 ,  C04B41/528 ,  C04B41/68 ,  C04B41/70 ,  C04B2111/00112 ,  Y10T428/252 ,  Y10T428/258 ,  Y10T428/259 ,  Y10T428/4935

Abstract: A method of protecting a porous material sensitive to corrosion caused by pollutants in the atmosphere. The method comprises treating the surface of the material with an agent containing more than 90% by weight of silica sol. The agent contains substantially no solid particles with a diameter exceeding about 1 micron. Porous building materials comprising a layer of gelled silica sol present in the pores below the material surface are prepared by the method.

Abstract translation: 保护对大气中污染物引起的腐蚀敏感的多孔材料的方法。 该方法包括用含有超过90重量％硅溶胶的试剂处理该材料的表面。 该试剂基本上不含直径超过约1微米的固体颗粒。 通过该方法制备包含存在于材料表面下方的孔中的凝胶状硅溶胶层的多孔建筑材料。

公开(公告)号：US06224944B1

公开(公告)日：2001-05-01

申请号：US08330101

申请日：1994-10-27

Applicant: Marek Tokarz ,  Michael Persson ,  Roman Kozlowski

Inventor： Marek Tokarz ,  Michael Persson ,  Roman Kozlowski

IPC: E01C1124

CPC classification number: C04B41/009 ,  C01B33/149 ,  C04B41/5089 ,  C04B41/528 ,  C04B41/68 ,  C04B41/70 ,  C04B2111/00112 ,  C04B41/4537 ,  C04B28/00

Abstract: The invention concerns a method of protecting a surface of a carbonatic material from corrosion, the method comprising treatment of the material surface with an acidic cationic silica sol, the pH of the sol preferably being from about 4 to about 7. The invention also concerns a new silica sol useful for performing the method and a method of preparing the new silica sol. Further, the invention concerns carbonatic material comprising a surface layer of silica, the surface of the silica particles comprising a polyvalent metal oxide/hydroxide.

Abstract translation: 本发明涉及一种保护碳材料表面免受腐蚀的方法，该方法包括用酸性阳离子硅溶胶处理该材料表面，该溶胶的pH优选为约4至约7.本发明还涉及一种 用于实施该方法的新型硅溶胶和制备新型硅溶胶的方法。 此外，本发明涉及包含二氧化硅表面层的碳材料，二氧化硅颗粒的表面包含多价金属氧化物/氢氧化物。